2289119921 has 16 divisors (see below), whose sum is σ = 2705617728. Its totient is φ = 1913049600.

The previous prime is 2289119897. The next prime is 2289119939. The reversal of 2289119921 is 1299119822.

It is not a de Polignac number, because 2289119921 - 2³⁰ = 1215378097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2289119941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134300 + ... + 150381.

It is an arithmetic number, because the mean of its divisors is an integer number (169101108).

Almost surely, 2^2289119921 is an apocalyptic number.

It is an amenable number.

2289119921 is a deficient number, since it is larger than the sum of its proper divisors (416497807).

2289119921 is a wasteful number, since it uses less digits than its factorization.

2289119921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284752.

The product of its digits is 46656, while the sum is 44.

The square root of 2289119921 is about 47844.7481025870. The cubic root of 2289119921 is about 1317.9214150481.

Subtracting from 2289119921 its reverse (1299119822), we obtain a palindrome (990000099).

It can be divided in two parts, 228911 and 9921, that added together give a palindrome (238832).

The spelling of 2289119921 in words is "two billion, two hundred eighty-nine million, one hundred nineteen thousand, nine hundred twenty-one".